(a) image

(b) Ground Truth

(c) NFA+RNFA, R =0.93, P = 0.95, F = 0.94

(d) RNFAEdge, R =0.91, P = 0.91, F = 0.91

(e) CannyLines, R =0.82, P = 0.92, F = 0.86

(f) EDLines, R =0.77, P = 0.89, F = 0.83

(g) LSD, R =0.84, P = 0.84, F = 0.84